Page 19 - KNORR Pneumatic Disc Brake

5

Functional and Visual Check

Brake Pad/Disc Wear Check (on vehicle)
using Carrier to Caliper position with bearing
variant (6c or 6d)

For all disc brakes which are equipped with a caliper to
carrier marking.
5.1.7. The pad/disc wear can be visually determined
without removing the road wheel by viewing the position
of the caliper position P compared to the carrier marking R
(see Figs.).
If the positions of P and R are similar to those shown in
5.1.7b, the brake pad thickness and the brake disc must
be checked with the wheel removed (see Fig.).
If any minimal tolerance limits have been reached (see 5.1.7a - Position of points P and R with new brake pads and disc
Section 5.1) the pads and/or disc must be changed.

Note: Pads must be changed as an axle set (see Section 6).
For disc replacement, follow vehicle manufacturer’s recom-
mendations.

5.1.7b - Position of points P and R with worn disc/brake pads

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